參數(shù)資料
型號(hào): M38239G9-XXXHP
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 37/76頁
文件大?。?/td> 896K
代理商: M38239G9-XXXHP
Rev.2.02 Jun 19, 2007 page 37 of 73
REJ03B0146-0202
3823 Group
Fig. 32 Structure of serial I/O control registers
BRG count source selection bit (CSS)
0: f(X
IN
) (f(SUB) in low-speed mode)
1: f(X
IN
)/4 (f(SUB)/4 in low-speed mode)
Serial I/O synchronization clock selection bit (SCS)
0: BRG output divided by 4 when clock synchronized serial
I/O is selected.
BRG output divided by 16 when UART is selected.
1: External clock input when clock synchronized serial I/O is
selected.
External clock input divided by 16 when UART is selected.
S
RDY
, S
OUT
output enable bit (SRDY)
0: P4
7
pin operates as ordinary I/O pin
1: P4
7
pin operates as S
RDY
or S
OUT
output pin
Set the transmit disable bit and S
RDY
, S
OUT
output enable bits
to “0” to disable transmit when selecting S
OUT
. (Setting
peripheral function extension register is necessary when
selecting S
OUT
.)
Transmit interrupt source selection bit (TIC)
0: Interrupt when transmit buffer has emptied
1: Interrupt when transmit shift operation is completed
Transmit enable bit (TE)
0: Transmit disabled
1: Transmit enabled
Receive enable bit (RE)
0: Receive disabled
1: Receive enabled
Serial I/O mode selection bit (SIOM)
0: Asynchronous serial I/O (UART)
1: Clock synchronous serial I/O
Serial I/O enable bit (SIOE)
0: Serial I/O disabled
(pins P4
4
–P4
7
operate as ordinary I/O pins)
1: Serial I/O enabled
(pins P4
4
–P4
7
operate as serial I/O pins)
Serial I/O control register
(SIOCON : address 001A
16
)
b
7
b
0
T
0
1
r
a
B
:
B
n
s
m
f
f
u
f
i
r
r
t
b
f
u
e
u
l
m
f
f
e
r
e
m
p
t
y
f
l
a
g
(
T
B
E
)
:
u
e
e
l
f
p
t
y
R
0
1
e
:
:
c
B
B
e
u
u
i
f
f
v
f
f
e
e
e
b
e
r
u
m
u
f
f
e
p
r
t
f
u
l
l
f
a
g
(
R
B
F
)
r
y
f
l
l
T
0
1
r
:
:
a
T
T
n
r
r
s
a
a
m
n
n
i
t
m
s
m
s
h
i
t
i
t
i
s
s
f
t
h
h
r
i
i
e
f
t
f
t
g
i
c
i
n
s
t
p
m
e
r
o
p
s
g
l
e
h
r
t
i
f
t
s
d
c
o
m
p
l
e
t
i
o
n
f
l
a
g
(
T
S
C
)
s
r
e
e
s
o
O
0
1
v
:
:
e
N
O
r
o
v
r
u
e
e
n
r
r
r
u
e
o
r
r
r
o
r
f
l
a
g
(
O
E
)
r
n
e
r
r
o
r
P
0
1
a
:
:
r
N
P
i
t
o
a
y
e
r
i
e
r
r
r
o
o
e
r
f
l
a
g
(
P
E
)
r
y
r
r
t
r
o
r
F
0
1
r
:
:
a
N
F
m
o
r
i
n
e
m
g
r
r
i
n
e
o
r
r
r
o
r
f
l
a
g
(
F
E
)
a
g
e
r
r
o
r
S
0
1
u
:
:
m
(
O
(
O
m
E
E
i
)
)
n
g
U
U
e
(
(
r
r
E
E
o
r
)
)
f
U
U
l
a
g
(
F
(
F
(
E
E
S
)
)
E
=
=
)
0
1
P
P
N
o
t
u
s
e
d
(
r
e
t
u
r
n
s
1
w
h
e
n
r
e
a
d
)
S
(
S
e
r
O
i
a
l
I
T
/
O
S
:
s
t
a
a
d
t
u
d
s
r
r
s
e
s
g
i
s
0
t
e
1
r
9
1
I
S
e
0
6
)
b
7
b
0
UART control register
(UARTCON : address 001B
16
)
Character length selection bit (CHAS)
0: 8 bits
1: 7 bits
Parity enable bit (PARE)
0: Parity checking disabled
1: Parity checking enabled
Parity selection bit (PARS)
0: Even parity
1: Odd parity
Stop bit length selection bit (STPS)
0: 1 stop bit
1: 2 stop bits
P4
5
/T
X
D, P4
7
/S
RDY
/S
OUT
P-channel output disable bit (POFF)
(Note)
0: CMOS output (in output mode)
1: N-channel open-drain output (in output mode)
Not used (return “1” when read)
b7
b0
1
2
:
T
:
f
h
S
e
U
p
B
e
)
r
i
s
p
h
t
e
h
r
a
s
l
o
f
u
u
n
r
c
c
t
i
o
o
n
s
c
e
x
l
l
t
a
e
t
n
i
o
s
n
i
o
f
n
r
r
q
e
u
g
e
i
s
n
t
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e
r
i
i
s
n
u
l
o
s
w
e
d
-
s
p
t
o
e
e
c
h
d
o
m
o
s
o
e
d
e
P
.
4
5
/
f
(
T
X
D
S
U
,
s
P
h
4
7
/
o
S
R
w
s
D
t
h
Y
/
e
S
O
o
U
c
T
.
i
l
(
i
e
e
i
e
y
B
)
s
l
a
t
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o
n
f
r
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q
u
e
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y
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X
C
I
N
o
r
t
h
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n
-
c
h
i
p
o
s
c
i
l
l
a
t
o
r
.
Notes
相關(guān)PDF資料
PDF描述
M38239GA-XXXFP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38239GA-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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M38239GB-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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